Discharge valve assembly



FIG. 1 is a top perspective view of a discharge valve assembly showing my new design;

FIG. 2 is a right side elevation view thereof;

FIG. 3 is a front elevation view thereof, the rear elevation view being a mirror image thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

The broken lines shown in the figures are included for the purpose of illustrating environment and form no part of the claimed design. 

CLAIM The ornamental design for a discharge valve assembly, as shown and described. 